Duncan mckenzie



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DUNCAN MCKENZIE, or BROOKLYNNEWYORK..

Letters Patent No. 79,674, dated July 7, 1868.

IMPROVED WOODEN PAVEMENT.

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`TO ALL WHOM IT MAY ONQERN: Be it known that I, DUNCAN McKENzIE, ofBrooklyn, in the county of I ings, and State of New York, have iinvented a new and useful Improvement in Wooden Pavements; and I dohereby declare lthat the followingis a fall, clear, and exactdescription thereof, which will enable-those skilled in theart to makeand use the same,

' 'reference being had to the accompanying drawings, forming part ofthis specification.

. This linventionV relates to avnew and'usef'ul improvementinwoorlenpavements, of thatclass which are constructed of blocks laidwith the grain in a vertical position, and placed in parallel'rows, witha space or-rccess allowed between the rows to receive sand audserve as afoot-hold for horses.

The invention consists in connecting the rows of wooden blocks Vby meansof dove-tail wooden strips- `attached to the sides of the blocks, andarranged insuch a manner that when the pavement islaid, it will beretained in proper position or at the proper level, the several blockssustaining each other throughout the entire length of the pavement. v-

In the accompanying sheet of drawings-v Figure 1 is a plan or top viewof'my invention.

Figurel, an end view of the same. i

Similar letters of reference indicate corresponding'parts.

A represents the blocks of wood'ot' which thcpaver'nent is constructed.

' Any suitable timber may be used, but spruce plank, from three to fourinches thick, and cut into lengths,v

say, of eight inches, will probably be the most desirable.

.Thcseb'locks are set with the grain of the wood in an upright position,as shown clearlyjin iig. 2, and to o ne side of cach block there isattached horizontally, by nails'o'r otherwise, a wooden stripB, havingbevelled or dove-,tail'upper and lower surfaces, as shown in fig. 2. l 4

'lo the other side of the blocks 'there are attached horizontally twowooden strips C C, a space being allowed bettveeni't'hem, and the innei`edges ot'v these strips are bevelled oro'tfdovc-tail form, correspondingto Vtheupper andlower surfaces of the strips B, the space between thestrips G C being of such a width as to receive the strips B, as shownclearly in 2- l By this arrangement it will he seen that the blocks A,when fitted togetliel'ancl laidfor a pavement, will be in parallel rows,and connected together by dove-tail fastenings or locks, the blocksbeing laid so as to break joints, as it is commonly terined, (see tig.l.)

The upper strips C are a short distance below the upper surfaces of theblocks A, so as to leave a space to receive sand, the blocks, as theyare laid, being-covercdor dipped in coal-tar, and thetop of the pavementcovered with a coat of said tar, and the spaces between lthe blockslthenlled with sand,

The blocks A may be laid on a concrete or plank foundation, the street,of course, being properly graded previous to laying the foundation.

4 IIdo not claim broadly the use of dove-tailed strips for securingwooden paving-blocks together, as I am aware that this has been donebefore; but

What I 'do claim as new, and desire to secure by Letters Patent, isl Thewooden pavement, constructed, as described', of the blocks AIL, securedtogether by means of the bcvelled str-ips attached to the opposite sidesof said blocks A, in the manner substantially as herein shown anddescribed.

' DUNCAN McKENZIE.

Witnesses: i

WM. F. MoN/mann; ALEX. Fjtonnn'rs.

